Consolidated Statement of Changes in Net Assets (Liquidation Basis) (Detail) (Corporate Liquidity, USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Apr. 26, 2014	Apr. 26, 2014
Corporate Liquidity
Net assets in liquidation at beginning of period	$ 16,607	$ 13,637
Decrease (increase) in estimated costs during the Dissolution period	85	(99)
Increase in estimated net realizable value for other assets		47
Increase in estimated net realizable value for other receivables		1,107
Increase in estimated net realizable value for patents	300	2,300
Net assets in liquidation at end of period	$ 16,992	$ 16,992